I am looking for a method to produce renderings that look like the realistic objects I am 3D printing. I would love to have a material / brush that adds the lines to an object so that looks like it was 3D printed.
Yes, it is possible to apply a Material/texture to your 3D model so that it looks like a printed object. You would Ray Trace your 3D object in Photoshop.
The look will vary depending on what kind of material you choose. Some looks might not be possible (like wax) because of limitations in our Ray Trace renderer. Others we can do very well like the plastic above.
So yes,it is possible but i want to setup expectations properly as lighting, materials/texture are not trivial. Each requires a real world understanding of how these things look in real life.
Hopefully I have not scared you off yet > but we can help you through this really!